Shawn Flanges is a well-known manufacturer and supplier of Alloy Steel F91 Flanges based in Houston, USA. They specialize in precision-engineered products that are essential for critical piping applications. Crafted from high-quality chromium-molybdenum alloy steel, these flanges offer outstanding strength, durability, and the ability to withstand high temperatures and pressures. Thanks to their excellent resistance to oxidation and creep, Alloy Steel F91 Flanges are a go-to choice in industries that require reliable performance in extreme conditions. Available in various types like slip-on, weld neck, blind, and socket weld, they meet international standards to ensure secure connections in the oil & gas, petrochemical, and power generation sectors.
Alloy Steel F91 Flanges are made up of chromium (8–9.5%), molybdenum (0.85–1.05%), vanadium, carbon, and small amounts of elements like manganese, silicon, and nickel. This carefully balanced composition boosts their corrosion resistance, creep strength, and hardness at high temperatures. On the mechanical side, these flanges showcase impressive tensile strength, excellent yield strength, and remarkable toughness, making them stable under stress and temperature changes. Their outstanding resistance to oxidation, wear, and scaling ensures they are reliable in high-pressure settings. With their durability and structural integrity, Alloy Steel F91 Flanges are perfect for long-term use in demanding industrial environments.
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo |
| Alloy Steel F91 | 0.15 max | 0.3-0.6 | 0.5-1.0 | 0.03 | 0.03 | 8-10 | 0.9-1.1 |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 380 | 585 | 20 % |
Shawn Flanges, a leading supplier in Houston, USA, offers an extensive selection of Alloy Steel F91 Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
Alloy Steel F91 Flanges are widely used in industries that require high-temperature and high-pressure resistance. These flanges are essential in power generation, petrochemical, and oil & gas sectors, where they connect pipes, valves, and other equipment in critical systems. F91 flanges are commonly found in steam lines, boilers, pressure vessels, and heat exchangers, where reliability and performance under extreme conditions are crucial. Their excellent strength, corrosion resistance, and ability to withstand elevated temperatures make them ideal for securing leak-resistant, long-lasting connections in demanding industrial applications.
Yes, we offer custom sizes for Alloy Steel F91 Flanges to meet specific project needs. Our team at Shawn Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@shawnflanges.us.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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